package demo1;



public class KeyBoard implements IUSB {
    @Override
    public void openDevice() {
        System.out.println("打开键盘");
    }
    public void closeDevice() {
        System.out.println("关闭键盘");
    }
    public void inPut() {
        System.out.println("敲击键盘");
    }
}
